correspondent doug mckelway tonight on the controversy over freedom of movement in education. >> this weekbe is about the future of american public education. >> supporters of the national school choice week campaign kicked off the celebration this week with 14 planned whistle stops across the country. >> organizers say research increasingly shows that students in poor performing public schools given alternatives, whether they be better public schools, charter schools, magnet schools, homeschooling do better. >> the they the says parents who select schools and schools of choice are outperforming the traditional system. they are improving faster than the traditional system. >> case and point is the washington, d.c. opportunity scholarship program that gives 1700 d.c. students vouchers to attend private schools. >> they have a 91% graduation rate. grad rate in d.c. schools hover around 60%. >> like tremendous popularity and shortage of slots the obama administration capped enrollment in the d.c. program under pressure from teachers union. earlier in 2008 campaign speech to the american